1. Newton's 1st law (Galileo's thought experiment)
Develop notion that a force is required to change velocity, not to produce motion
Constant velocity does not require an explanation.
2. Force concept
View force as an interaction between and agent and an object
Choose system to include objects, not agents
Express Newton's 3rd law in terms of paired forces (agent-object notation)
3. Force diagrams
Correctly represent forces as vectors originating on object (point particle)
Use the superposition principle to show that the net force is the vector sum of the forces
4. Statics
∑F = 0 produces same effect as no force acting on object
Decomposition of vectors into components
Instructional Goals
1. Newton's 1st law (Galileo's thought experiment)
Develop notion that a force is required to change velocity, not to produce motion
Constant velocity does not require an explanation.
2. Force concept
View force as an interaction between and agent and an object
Choose system to include objects, not agents
Express Newton's 3rd law in terms of paired forces (agent-object notation)
3. Force diagrams
Correctly represent forces as vectors originating on object (point particle)
Use the superposition principle to show that the net force is the vector sum of the forces
4. Statics
∑F = 0 produces same effect as no force acting on object
Decomposition of vectors into components
LAB NOTES & INSTRUCTIONAL COMMENTS :
Gravitational Force lab
Newton's 3rd Law (N3L) activity
Frames lab: NOTE - I made a PICNIC error - cos 30 (1 N) = .866 N and the 0.866 N/ cos 60 = 1.73N
STUDENT MATERIALS
Physics of NFL
Vector Calculators
NASA - Toys In Space
VIDEOS:
Vectors:
Free Body Diagrams:
Newton's Laws